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Sierra Systems Announces Completion of Acquisition

VANCOUVER, BRITISH COLUMBIA--(CCNMatthews - May 31, 2006) - Sierra Systems Group Inc. (TSX:SSG) today announced that it has completed the acquisition of TkMC (Turnkey Management Consulting), a partnership headquartered in Edmonton, Alberta. This acquisition strengthens Sierra Systems' business consulting capabilities and adds depth of experience in the healthcare and government sectors.

Mr. Iraj Pourian, President and Chief Executive Officer of Sierra Systems, said, "We are delighted to have completed the acquisition and look forward to the addition of this skilled group to our staff. This strategic investment will help us meet our growth targets and provide significant benefits to our clients in Alberta and across Canada."

About Sierra Systems

Since 1966, Sierra Systems Group Inc. (TSX:SSG) has been improving the operational performance of our clients by delivering superior information technology and business consulting services. Through our extensive experience in Business Consulting, Solutions Delivery, and Managed Services, Sierra Systems has emerged as a trusted advisor to many leading private and public sector organizations across North America. With offices in Austin, Calgary, Edmonton, Fredericton, Halifax, Hartford, Los Angeles, Olympia, Ottawa, Seattle, Toronto, Vancouver, Victoria, and Winnipeg, our consultants are never far from our clients. In Justice, Health, Government, and various other industries, Sierra Systems continues to win exciting engagements in the face of stiff competition.

The statements contained in this release that are not historical facts are forward-looking statements that involve risks and uncertainties. Sierra Systems' actual results could differ materially from those expressed or implied by such forward-looking statements. Factors that could cause or contribute to such differences include, but are not limited to, technological shifts, employee retention, fixed price contract delivery, competition, general economic conditions, foreign exchange and other risks detailed in the Company's Annual Report and other filings with Canadian securities regulatory authorities. We have no responsibility, nor do we intend, to update these forward-looking statements.